Of all the cars that Iâ€™ve owned, my favorite was a yellow and black 1975 Fiat X1/9. Designed by Nuccio Bertone, the X1/9 was a two-seater, hardtop convertible with a mid 1489 cc. engine and a five-speed transmission. It was beautifully styled and it handled like a dream. It was tremendous fun driving this sleek…